ABSTRACT
OBJECTIVE To analyze the characters of hospital infection among deceased inpatients.METHODS The inpatients who died in hospital from Jan 2004 to Dec 2005 were analyzed retrospectively.RESULTS The infection rate of deceased inpatients was 40.11%,and the location majored in respiratory tract,urinary system and digestive tract.The infection rate was apparently higher among the cases more than 60 years old,and those with hematological disease,circulatory disease and nervous system disease.The hospital infection rate was related with long hospitalization and had seasonal fluctuation.CONCLUSIONS The high hospital infection rate among deceased pabients may be related with the seriously underlying diseases, aging,drug abuse and invasive therapy.
ABSTRACT
Objective To investigate the effect of diagnostic ultrasound on cochlear hair cells in fetal guinea pigs. Methods Diagnostic ultrasound was used to irradiate the uteri of early pregnant guinea pigs(the first 15 days of gestion) and late pregnant guinea pigs(the 40th to 45th days of gestion) for 5 minutes daily. The number of cochlear hair cells in fetal guinea pigs was calculated using succinic dehydrogenase (SDH) staining, and computer image analysis system. The morphological change of cochlear hair cells was observed with scanning electron microscope(SEM). Results Compared with non-exposed control group, the number of total hair cells obviously decreased in the two exposed groups (P